from urllib.parse import unquote

f = unquote(
    "30%2C30%2C30%2C%2C%2C%2C%2C30%2C%2C%2C%2C%2C%2C%2C%2C%2C%2C%2C%2C%2C%2C%2C%2C%2C%2C%2C%2C%2C%2C")
# print(f)
# a = ["a", "b", "c"]
# print(a[int("01")])

print(list({"A": "B", "S": "30"}.items())[0])
f = [{"A": "B", "S": "30"}, {"N": "M", "S": "30"}]

'''
<select id="DEPEND_ON" name="DEPEND_ON" class="required col-xs-10 col-sm-11 
						<option> 
C 下拉联动依赖 
V 取值有效依赖 
  
					</select>
			     	</select>
			     	
			     	'''